Skip to main content

Advertisement

Log in

Climatic changes during the last deglaciation recorded in sediment cores from the northeastern Brazilian Continental Margin

  • Article
  • Published:
Geo-Marine Letters Aims and scope Submit manuscript

Abstract

Detailed 14C AMS data and isotope based stratigraphies from high-resolution paleoceanographic records for the last 22 ka of cores from the upper continental slope off NE Brazil reveal sedimentation rates of up to 100 cm per 1000 yr. Variations in the sediment composition relate to changes in the input of terrigenous material. The sedimentation is controlled by sea level and by the climatic regime of the hinterland. Short-term changes in the tropical wind field may act as a climatic trigger. The zonality of the SE trades was probably increased and the monsoonal activity over Africa reduced during the Younger Dryas period.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Arz, H., Pätzold, J. & Wefer, G. Climatic changes during the last deglaciation recorded in sediment cores from the northeastern Brazilian Continental Margin. Geo-Marine Letters 19, 209–218 (1999). https://doi.org/10.1007/s003670050111

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1007/s003670050111

Keywords

Navigation